ESP32_LoRaWAN Library stuck in "JOINING" in TTNv3

i’m using the ESP32_LoRaWAN Library in this Project.

JoeRu/heltec_TTN_GPS_Mapper: An implementation for a heltec lora32 esp + neo gps module as a example. (

I switched in the testszenario to TTNv3 and have now the problem that the same code does not join to ttnv3.

This is the definition of the device

This is the logs of the join request

ABP - Does work without problems in TTNv3; OTA does actually not. What can i do - to circle things down?

solved it - don’t delay within the loop …

The delay will disrupt the timing.